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Wireless communication method and device

a wireless communication and wireless communication technology, applied in the field of wireless communication, can solve problems such as the problem of repeating dwpts or uppts in special subframes, and achieve the effect of solving the problem of repeating dwpts or uppts in a special subfram

Active Publication Date: 2017-09-07
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a new invention that has various forms and configurations. The technical effect of this invention is that it allows for the creation of innovative and efficient products and solutions in different ways.

Problems solved by technology

As the available resources in the special subframe are different from that in the normal subframe, how to map repetition in DwPTS or UpPTS in a special subframe becomes a problem.

Method used

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  • Wireless communication method and device
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  • Wireless communication method and device

Examples

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first embodiment

[0026]In the first embodiment of the present disclosure, there is provided a wireless communication method 200 performed by a wireless communication device (first wireless communication device), as shown in FIG. 2 which, schematically illustrates the flowchart of the wireless communication method 200 according to the first embodiment The wireless communication method 200 comprises a step 201 of transmitting a data packet repeatedly in multiple subframes including at least one normal subframe and at least one special subframe to another wireless communication device (second communication device). In this communication method, the data packet is transmitted repeatedly in multiple subframes in order to enhance the physical channel. This repeated transmission is in particular suitable for MTC, but not limited to MTC. It can be applied to any wireless communication requiring channel enhancement. The first communication device and the second communication device can be an eNB, a UE or the...

second embodiment

[0048]In some application scenarios, for example, for control channel for pieces of MTC UE in enhanced coverage, multiple repetitions can be transmitted in one subframe as shown in FIG. 12 which schematically illustrates multiple, repetitions transmitted in one subframe. FIG. 12 exemplarily shows that 6 repetitions are transmitted in one subframe. For this case, the second embodiment of the present disclosure provides a wireless communication method performed by a wireless communication device (first communication device). The wireless communication method can comprises a step of transmitting a data packet repeatedly in multiple subframes including at least one normal subframe and at least one special subframe to another wireless communication device (second communication device), wherein the available resources in the special subframe are different from that in the normal subframe. The wireless communication method in the second embodiment can have the same flowchart as shown in FI...

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PUM

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Abstract

Provided are wireless communication methods and devices, in one embodiment, a wireless communication method performed by a wireless communication device comprises: transmitting a data packet repeatedly in multiple subframes including at least one normal subframe and at least one special subframe to another wireless communication device, wherein the available resources in the special subframe are different from that in the normal subframe, the data packet includes multiple modulated symbols which are divided into multiple modulated-symbol sets, in each subframe, each OFDM symbol is mapped by one of the modulated-symbol sets, and in every subframe, the modulated symbols in the same modulated-symbol set are mapped onto REs in one OFDM symbol in a fixed order. In another embodiment, multiple repetitions of the data packet are transmitted in each subframe, and in each special subframe, different repetitions are mapped onto REs with cyclic shift.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to the field of wireless communication, and in particular, to wireless communication methods and wireless communication devices such as an eNode B (eNB) or user equipment (UE).[0003]2. Description of the Related Art[0004]Machine-Type Communication (MTC) is an important revenue stream for operators and has a huge potential from the operator perspective. Based on the market and operators' requirements, one of the important requirements of MTC is improving the coverage of pieces of MTC UE. To enhance the MTC coverage, almost all of the physical channels need to be enhanced. Repetition in time domain is the main method to improve the coverage of the channels. At the receiver side, the receiver combines all the repetitions of the channel and decodes the information.[0005]In Time Division Duplexing (TDD) not all the subframes in one frame are used for downlink (DL) or uplink (UL) transmission. According to the frame st...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04W72/04H04L5/00
CPCH04L27/2613H04L5/0044H04L27/2607H04W72/0413H04W72/042H04L5/0007H04L5/0048H04L5/1469H04L27/26132H04L5/14H04W72/21H04W72/23
Inventor GAO, CHIWANG, LIWANG, LILEISUZUKI, HIDETOSHIHOSHINO, MASAYUKI
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA